Erysiphe palczewskii (Jaczewski) Braun & Takamatsu, 2000

on Caragana, Colutea, Robinia

gall

mycelium amphigenous. Appressoria lobed, mostly single. Conidia solitary, elliptic, without fibrosin bodies. Cleistothecia with 3-13 asci, that contain 4-7 spores. Appendages 3-20, equatorial or a bit higher, 1-2.5 x the diameter; they have 0-1 sept, are rather stiff, almost hyaline, at the tip 5-8 times dichotomously branched in quick succession.

According to Klenke & Scholler the cleistothecia are very numerous, standing in dense groups.

host plants

Fabaceae, oligophagous

Caragana arborescens, aurantiaca, boisii, decorticans, densa, franchetiana, frutex, ? microphylla, sophorifolia, spinosa; Colutea arborescens; Robinia hispida, pseudoacacia.

synonyms

Microsphaera palczewskii Jaczeswki, 1927.

references

Bacigálová & Marková (2006a), Beenken & Senn-Irlet (2016a), Braun (1995a, 2000a), Braun & Cook (2012a), Bresinsky (2016a), Czerniawska (2001a), Dynowska, Fiedorowicz & Kubiak (1999a), Jage, Klenke, Kruse ao (2016a), Jage, Klenke & Kummer (2010a), Klenke & Scholler (2015a), Kozłowska, Mułenko & Heluta (2015a), Korytnianska & Popova (2012a), Kruse (2014a, 2019a), Lebeda, Mieslerová & Sedlářová (2005a), Mułenko, Piątek, Wołczańska ao (2010a), Negrean & Anastasiu (2006a), Ruszkiewicz-Michalska (2006a), Scheuer & Bechter (2012a), Sucharzewska, Dynowska, Kubiak ao (2012b), Talgø, Sundheim, Gjærum ao (2010a).

mod 20.vii.2019